Draft-regulator for hydrocarbon-burners.



' v No. 815,316.

PATENTED MAR. 13, 1906. F. E. YOUNGS. DRAFTREGULATOR FOR HYDROCARBONBURNERS,

APPLICATION FILED 00112. 1903.

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No. 815,316. PATENTED MAR. 18, 1906.- F. E. YOUNGS.

DRAFT REGULATOR FOR HYDROOA-RBON BURNERS. APEPLIGATION HLED 002?. 12,1903.

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a a 14-. \i v I I 4 7 ii I ,u mullllllllllll N I Q" 6 witncoaea theburner, whichcauses the flame to be drawn down through the verticalair-tubes NITED 1 STATES I PATENT OFFICE, f;

Specification of Letters Patent.

Patented March 13, 1906.

Original application filed August 22,1903, Serial No- 1'70,332. Dividedand this application filed October 12, 1903. Serial N 0. 176,767.

Francisco, in the county of San Francisco" and State of California, haveinvented-new and useful Improvements in Draft-Regulators forHydrocarbon-Burners, of which the following is a specification.

My invention relates to improvements in draft-regulatorsforhydrocarbon-burners,and especially intended for use insteam-automobiles, and is a division of application Serial No. 170,332,filed August 22, 1903.

The object of my invention is to provide means for preventing a backdraft through and out around the bottom of the burner, thus damaging therunning-gear and body of the vehicle, as well as causing a loss of fueland heat.

In the accompanying drawings, Figure l'is a top plan view of a completecircular burner,

showing my draft-regulator in dotted lines. Fig. 2 is a verticalsectional view of Fig. 1. Fig. 3 is an enlarged side view, partly brokenaway; and Fig. 4 is an enlarged vertical sectional view, partly brokenaway, showing one of my swinging doors.

-.Referring now to the drawings,"1 repre sents an ordinary circularcasing, which is made of sheet metal and of the form most commonly usedin steam-automobiles.

. While I have shown my re ulator attached to a circular burner, it wilbe understood that the same is applicable to any style of burner.

During the burning operation of all burners, and especially those usedon motorvehicles, the draft or wind blowingunder the carriage causes adowndraft through the ver- 'tical flues, and thus causes the flame to bedrawn down and flash out around the vehicle,

thereby burning the running-gear and also causing the vapor-'to'be onlypartly consumed, thus resulting in smoke and .odor.

To obviate this drawing of the flame and wasting of the fuel, I providea draft-regulator which consists of a flat bottom 45, corresponding inshape and size to that of the bottom plate 7 of the burner, and'securedthereto are the V-shaped spacing-plates 46, which have their upperendsresting against the lower surface of the plate 7. Passing between thetwo sides of the said V-shaped members are bolts 47 which screw into thebottom of the plate 7, and thus the plate 45 I is supported a distancebelow the plate 7,.

leaving the sides open between the spacingplates 46 and the bottom plate7. Pivoted between the side of one of said spacing-plates and the sideof the plate adjacent thereto is a door 47, which has its upper endturned outwardly at 48 and 'its lower end turned inwardly at 49 and isso constructed that it -will normally hang at an angle, as shown in Fig.4.- In order to. counterbalance the weight ofthe door and hold the samejust off of the balance-point, I provide a piece or strip of metal 49,which is rigidly secured to the door '47 by a bolt or rivet, and saidstrip is preferably made of some soft pliable metal and adapted to berolled up, as shown in Fig. l

4, thus lengthening or shortening the leverage and changing thebalance-point of the door. It is'understood that these doors are placedbetween the spacing-plates all the way around the bottom of the burner,or, in other words, the sides surrounding the bottom of the burner arepractically formed of inwardly-swinging doors. This, ,construc tion, asaforestated, is to prevent the down- 1 draft of the flame, and this isaccomplished by the doors being made to swing inwardly holdthe door onthe opposite side closed, and

thus the air passes up through the air-tubes and causes a perfectcombustion of .the va-' por. When the vehicle is standing still, theoperation is the, same, no matter from which direction the wind isblowing.

' Having thus described my invention, what I claim as new, and desire tosecure by Letters Patent, is. i

1. In combination with a hydrocarbonburner, of swinging doorssurrounding the lower end of said burner and adapted to be held closedby an outward draft from within the burner and adapted to be opened bypressure from the outside.

2. The-combination with a hydrocarbonburner, of means for admitting arush of air to the'burner from one or all of the sides and preventing arush' of air from'within the burner.

-'3. The combination with a hydrocarbonburner, of a casing below saidburner, and

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means carried by the casin for admitting a rush of air to the burner irom one and "all sides of said casing, and preventing a rush of airoutward from within the casing.

4. The combination with a hydrocarbonburner, of a casing surrounding thelower edge of said burner, doors surrounding the casing, and adapted toallow a rush of air to the burner from one and all sides of the casing,and preventing a rush of air outward from within the casing.

5. The combination withaburner, of downwardly-extending members carriedby the lower edge of said burner, a plate carried by the lower end ofsaid members, and inwardlyswinging doors pivoted between said membersand closing the spacebetween the burner and the plate.

6. The combination With a burner, of downwardly-extending memberscarried by said burner, a plate carried by the lower end of saidmembers, doors pivoted between said members and closing the spacebetween the burner and the plate, and means for preventing the saiddoors from swinging outwardly.

7. The combination with a burner, of downwardly-extending memberscarried by said burner, a plate carried by the lower end of said membersdoors pivotally mounted between said members, and normally held in anoblique position, weights carried by the doors for counterbalancing theweight of the doors, said doors adapted to be swung inwardly, only.

8. The combination with a burner, of inwardly-swinging doors surroundingthe lower portion of the burner, and means whereby the doors of one orall sides may be opened by the outside atmosphere, or one or all of thedoors may be closed by the inside pressure, or the doors on one side maybe opened by outside atmosphere and closed by inside pressure, or viceversa.

9. The combination with a burner fitted with verticallyarranged airflues extending therethrough, of downwardly-extending members carried bythe bottom of said burner, a bottom plate carried by said members, doorspivoted between said downwardlyeXtending members, and means whereby thedoors are opened by the air from the outside and closed by the air fromthe inside,

10. The combination with a burner, of obliquely-arranged swinging doorsnormally held inan oblique and closed position, an outwardly-extendingflexible arm carried by said door, and adapted to be rolled and forminga weight for counterbalancing the door, and said door adapted to beswung inwardly and open by the outside pressure, and adapted to be heldclosed by the inside pressure.

11. The combination with a burner, of downwardly-extending V-shapedmembers carried by the burner, a bottom plate sup ported by the lowerend of said V-shaped members, doors pivotally supported between saidV-shaped members and normally held in an oblique closed position andadapted to be opened by the outside pressure and closed by insidepressure.

12. The combination with a burner, downwardly-extending V-shaped memberscarried. by the burner, a bottom plate supported by thelower end of saidV-shaped members, of obliquely-arranged doors pivoted between saidV-shaped members and normally held in an oblique and closed position, anoutwardly-extending flexible arm carried by each door and adapted to berolled and forming a weight for couterbalancing the door, and said dooradapted to be swung inwardly and opened by the outside pressure andadapted to be held closed by the inside pressure.

13. The combination with a burner, of normally inwardly inclined.swinging doors surrounding the lower portion of said burner, and adaptedto be opened inwardly by airpressure from the outside or held closed byairpressure from the inside 14. The combination with a burner, of obliquely-arranged swinging doors normally held in .an oblique and closedposition, outwardly-extending adjustable arms carried by said doors, andsaid doors adapted to be swung inward and opened by the outside pressureand adapted to be held closed by the inside pressure.

In testimony whereof I have hereunto set my hand in the presence of twosubscribing witnesses.

FRED E. YOUNGS.

